//////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2008-2010, Shane J. M. Liesegang
// All rights reserved.
// 
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// modification, are permitted provided that the following conditions are met:
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//       notice, this list of conditions and the following disclaimer.
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//////////////////////////////////////////////////////////////////////////////

#pragma once

#include "Vector2.h"

struct Ray2;

enum ContainmentType
{
	Disjoint,
	Within,
	Intersects
};

struct BoundingBox
{
	Vector2 Min;
	Vector2 Max;

	BoundingBox(const Vector2 &min, const Vector2 & max);
	BoundingBox();

	Vector2 Centroid() const;
	Vector2 HalfLength() const;

	static BoundingBox CreateMerged(const BoundingBox &original, const BoundingBox &additional);

	void GetCorners(Vector2 corners[]) const;
	static BoundingBox CreateFromPoints(Vector2 points[], int count);

	bool Intersects(const BoundingBox &box) const;
	bool Intersects(const Ray2 &ray, float &distanceAlongRay) const;
	bool Intersects(const Vector2 &point, float radius) const;

	ContainmentType Contains(const BoundingBox & box) const;
	bool Contains(const Vector2 &point) const;

	void RenderOutline() const;
	void RenderBox() const;
};

bool operator ==(const BoundingBox &a, const BoundingBox &b);
bool operator !=(const BoundingBox &a, const BoundingBox &b);
